Groundwater permeability correlations in the boom clay using wireline logs

摘要

Nuclear magnetic resonance (NMR) logging is an innovative technology used in the oil and gas industry to evaluate the economic potential of exploration and production wells.This technology is being applied to nuclear repository studies as a real-time reconaissance tool that can assess the vertical distribution of key hydraulic properties.Specifically,the Compensated Magnetic Resonance tool,(CMR~*,Fig.1) is undergoing evaluation as an in-situ system for qualitatively inferring evaluation as an in-situ system for qualitatively inferring the continuous,vertical distribution of porosity and intrinsic permeability within the Boom Clay in belgium,in support of the NIRAS-ONDRAF program.As part of this evaluation,CMR logging of the Mol-l well was conducted in April 1997.The CMR tool was logged over much of the well,including a 100 m-thick section of the Boom Clay,a cyclically layered sequence of sits and clays.The continuous CMR logging results were subsequently compared to selected grain size and hydraulic conductivity of core from the Mol-l well.